20250829

"""n=int(input())
cg=0
a=[]
for i in range(n) :
    b=list(input().split(','))
    a.append(b)
for i in range(len(a)) :
    for j in range(3, len(a[i])) :
        cg+=1
cg=cg/n
print('%.2f'%cg)"""
"""n=int(input())
a=[]
for i in range(n) :
    b=list(input().split(','))
    a.append(b)
m=input()
for i in range(len(a)) :
    if a[i][0]==m :
        print(a[i][2])"""
"""n=int(input())
k=0
a=[]
for i in range(n) :
    b=list(input().split(','))
    a.append(b)
m=input()
for i in range(len(a)) :
    if a[i][0]==m :
        k=i
for i in range(3, len(a)) :
    print(a[k][i])"""